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Now showing items 151-160 of 226
Changes in the length and weight of milkfish, Chanos chanos, larvae preserved in formalin
(Fisheries Research Society of the Philippines, 1980)
Shore-caught milkfish fry (late postlarvae) and artificially-bred, laboratory-reared larvae (0-to 20-day old) were preserved in 5% and 10% freshwater-and/or seawater-formalin solutions after measuring their initial weights ...
Studies on the penaeoid prawns of the Philippines
(Carcinological Society of Japan, 1984)
Thirty-five species of penaeoid prawns, representing 9 genera in 3 families, have been found over a period of 5 years from 1976 to 1980 in the Philippine waters. Of these, 15 species have been recorded for the first time ...
Studies on the fungal diseases in crustaceans. II. Haliphthoros philippinensis sp. nov. isolated from cultivated larvae of the jumbo tiger prawn (Penaeus monodon)
(Mycological Society of Japan, 1980)
Haliphthoros philippinensis sp. nov., isolated from larvae of P. monodon is described and illustrated as new. The fungus grew at a temperature range of 13.5-36.3 C, with the optimum of 29.3-34.5 C. Growth occurred in ...
Larval rearing of bighead carp, Aristichthys nobilis Richardson, using different types of feed and their combinations
(Blackwell Publishing, 1988)
The effects of different types of feed, given singly or in combination, on the growth and survival of bighead carp, Arislichlhys nobilis Richardson, larvae reared for a period of 12 weeks were determined. Growth was highest ...
Acute toxicity of un-ionized ammonia to milkfish (Chanos chanos) fingerlings
(Fisheries Research Society of the Philippines, 1981)
The acute toxicity of un-ionized ammonia to milkfish (Chanos chanos) fingerlings was determined using a static bioassay system. The 24-, 48-, 72-, and 96-hr LC<sub>50</sub> values were calculated at 25.74 ppm NH<sub>3</sub>-N ...
The ultrastructure of the hepatocytes of the giant seaperch, Lates calcarifer (Bloch) (Pisces: Centropomidae), during starvation and refeeding with different diets.
(The Marine Biological Association of Hongkong, 1986)
Three groups of immature seaperch acclimated in the laboratory on a mixed commercial pellet and minced trashfish diet were starved for 30 days. Thereafter, the first group was starved for 7 more days, the second was refed ...
The visual feeding threshold and action spectrum of northern anchovy (Engraulis mordax) larvae
(California Cooperative Oceanic Fisheries Investigations, 1983)
The visual feeding threshold and action spectrum of 10-15-mm northern anchovy larvae were determined, using as criterion the incidence of two or more rotifers in the guts of 50% of larvae tested under different spectral ...
Effects of increased stocking density and supplemental feeding on the production of milkfish fingerlings
(Fisheries Research Society of the Philippines, 1982)
Experiments were conducted in twelve 144 sq. m. brackishwater ponds at Leganes Research Station, SEAFDEC, to determine the effect of increased stocking density and supplemental feeding on milkfish fingerling production. ...
Development of the external genitalia of the giant prawn, Penaeus monodon
(The Japanese Society of Scientific Fisheries, 1980)
The present paper deals with the morphological development of the external genitalia of Penaeus monodon which will serve as a basis for future researches on the reproductive biology of this species. The petasma length is ...
Evaluation of practical diets in the culture of the rabbitfish, Siganus guttatus (Bloch) (Pisces: Siganidae) using liver ultrastructural methods
(Elsevier, 1986)
The starvation-induced ultrastructural modifications in the hepatocytes were reversed when Siganus guttatus resumed feeding on a suitable feed. The liver cells regained their structural integrity soonest when the fish was ...